Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF89L
Wavelength:
µm
(0.360 – 2.400)
Derived optical constants
n
k
logX
logY
eV
Dispersion formula
$$n^2=3.66932806-0.0136919991λ^{2}+0.0484216361λ^{-2}+0.00132160482λ^{-4}+2.4217258\text{×}10^{-05}λ^{-6}+8.50124351\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false λ_is_vacuum: false temperature: 20.0 °C coefficients_of_thermal_dispersion: -4.45e-07 1.4e-08 -3.45e-11 9.44e-07 1.04e-09 0.253 n_d: 1.953749 V_d: 32.318108 glass_code: 954323 density: 5.1 g/cm3 coefficient_of_thermal_expansion_1: 7.2e-06 K-1 coefficient_of_thermal_expansion_2: 8.8e-06 K-1 ΔP_gF: -0.0002 climatic_resistance: 1.0
References
CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)